仕様やルール，使い方などのHow Toを手短にまとめたチートシートを探していたらこういうページを 見つけました。プログラミング言語だけでなく，HTMLやSQL，jQuery，Django，Railsなどもあって，かなり充実していてビックリかつ 関心したのでご紹介。チートシート配布サイトとして有名なAdded Bytesからのものが多いですね。どのチートシートも印刷しやすくなっているので，紙に印刷して手元に置いておきたくなります:-D。
元のページには，PhotoshopやIlustratorなどAdobe製品のチートシートなどもあるのですが，このブログの読者向けに再編してみました。また，順番を変えてあります。
プログラミング言語
Python
Python cheat sheet by Added Bytes (PDF形式) (PNG形式)
Ruby
Essential Ruby by Dzone (要ユーザ登録，無料) (Download)
Perl
Perl Quick Ref. (PDF)
PHP
PHP by Dzone (要ユーザ登録，無料) (Download)
PHP cheat sheet “Version 2″ by Added Bytes (PDF形式) (PNG形式)
JavaScript
JavaScript cheat sheet by Added Bytes (PDF形式) (PNG形式)
ActionScript
ActionScript 2.0 to 3.0 Migration Cheatsheets (Download)
ActionScript 3.0: Top Level Cheatsheets (Download)
ActionScript 3.0: flash.display Package Cheatsheet (Download)
ActionScript 3.0: Packages Cheatsheet (Download)
ActionScript 2.0 Cheatsheet (Download)
Fuse Cheatsheet (AS2 Animation Engine) (Download)
Server-Side ActionScript Cheatsheet (Download)
AS3 and Flex API Posters (Visit Now)
ActionScript 3 API PDF at Flex.org (Download)
Flex 2 Framework API PDF at Flex.org (Download)
SQL
Essential MySQL by Dzone (要ユーザ登録，無料) (Download)
SQL Server cheat sheet by Added Bytes (PDF形式) (PNG形式)
MySQL Server cheat sheet by Added Bytes (PDF形式) (PNG形式)
Web
HTML / XHTML
XHTML Reference by Cookwood.com (Visit Here)
HTML Help Sheet (PDF)
XHTML Cheat Sheet v. 1.03 (PDF)
HTML Characters Codes by Designers Toolbox (Visit Here)
HTML cheat sheet by Added Bytes (PDF形式) (PNG形式)
HTML Character Entities cheat shee by Added Bytes (PDF形式) (PNG形式)
Character Entity References in HTML 4 and XHTML 1.0 by Cookwood.com (Visit Here)
Doctypes for XHTML & HTML by Cookwood Press (Visit Here)
HTML/XHTML Reference by http://www.html.su/ (Visit Here)
CSS
CSS Cheat Sheet (Version 1) by AddedBytes.Com (PDF形式) (PNG形式)
CSS Cheat Sheet (Version 2) by AddedBytes.Com (PDF形式) (PNG形式)
Core CSS: Part I by Dzone (要ユーザ登録，無料) (Download)
Core CSS: Part II by Dzone (要ユーザ登録，無料) (Download)
Core CSS: Part III Dzone (要ユーザ登録，無料) (Download)
CSS template layout cheats by Zach Graeve (Visit Here)
Blueprint CSS Cheat Sheet by Blueprint CSS (Download)
CSS Cheat Sheet: Inheritance, Cascade, Specificity by Zoe Gillenwater (Visit Here)
CSS Shorthand Cheat Sheet by Eddie Welker (Download)
CSS Shorthand Cheat Sheet by Example (Download)
CSS Reset, Base, Fonts, and Grids by YUI Library (Download)
CSS Cheat Sheet by LeslieFranke.Com (Visit Here)
CSS Properties and Values by Cookwood Press (Visit Here)
XML
XML Syntax Quick Reference (PDF)
RSS and ATOM
RSS and Atom by Dzone (要ユーザ登録，無料) (Download)
Really Simple Syndication (RSS) Cheat Sheet (PDF)
Microformats
Microformats cheat sheet by Added Bytes (PDF形式) (PNG形式)
Microformats cheat sheet by Suda.co.uk (Download)
配色(Color Reference)
Color Codes Matching Chart HTML (Convert CMYK, RGB Hex) (read here)
Pantone Color Comparison Guide by San Diego Plastics (Download)
RGB Hex colour chart by Added Bytes (PDF形式) (PNG形式)
JavaScriptライブラリ
Ajax
Getting Started with Ajax by Dzone (要ユーザ登録，無料) (Download)
jQuery
jQuery 1.3 Cheat Sheet by Kris Thompson (Download)
jQuery Cheat Sheet by Chris Wallace (Download)
jQuery Selectors by Dzone (要ユーザ登録，無料) (Download)
jQuery 1.2 Cheat Sheet by G. Scott Olson (Download)
Prototype
Prototype 1.6.0.2 Cheat Sheet by Juriy Zaytsev (Download) – (高コントラスト)
PROTOTYPE 1.5.0 CHEAT SHEET (PDF) – (PNG)
Prototype Cheat Sheet by kangax (Download)
MooTools
MooTools 1.2 Cheat Sheet by Maik Vlcek (PDF高画質版) – (PDF低画質版)
MooTools Cheat Sheet by Jonathan Snook (Download)
Script.aculo.us
Script.aculo.us Cheat Sheet by Amy Hoy (Download)
Yahoo User Interface Library
Yahoo User Interface Library by Yahoo (Visit Here)
SEO
The Web Developer’s SEO Cheat Sheet by Danny Dover (Download)
Mihai’s SEO Cheat Sheet by mihaigheza.wordpress.com (PDF)
Webフレームワーク，CMS
Django
Django cheat sheet by Mercurytide (Download)
Django Reference Sheet (PDF)
Ruby on Rails
Ruby On Rails cheat sheet by Added Bytes (PDF形式) (PNG形式)
Drupal
Drupal 5 Cheat Sheet (PDF)
Drupal 4.7 Cheat Sheet (PNG)
Wordpress
http://www.graphicrating.com/2009/01/18/my-wordpress-cheat-sheet/
Wordpress Help Sheet (PDF)
The Loop Cheat Sheet (PDF)
Widget Cheat Sheet (PDF)
Plug-In API Cheat Sheet (PDF)
Theme Tage Cheat Sheet (PDF)
Database Map (PNG)
その他
Google Cheat Sheet lists all Google services and tools as well as background information. (PDF)
Google Guide (PDF)
